Shell plate rolling device



-1 1937. J. o. HOLMBERG ,9

SHELL PLATE ROLLING DEVICE Filed July 5. 1955 INVENTOR 3 JohanOHolm rgZ7 BY g A TORNEY Patented Aug. 10, 1937 UNITED STATES Claims.

(Granted under the act of March 3, 1883, as amended April 30, 1928; 3700. G. '757) This invention relates to a shell plate rolling device andis especially intended to provide a shell plate rolling device capableof rolling shell plates which are of a greater length than the length ofthe roller.

Shell plate rolling machines, as previously known, are limited tovrolling shell plates of a length not greater than'the length of therolls used in the machine, the rolls being supported on housings whichlimit the length of the plates that can be placed therebetween.

With this invention a housing is provided which will not limit thelength of the shell plate to the distance between the housings and whenone housing of this invention is used a shell plate of a length. greaterthan a single length of the roll but less than twice the length of therolls can be rolled, and when housings according to this invention areused at each end of the rolls then the shell plate of indefinite lengthcan be rolled between the rolls.

With the housing, or housings, of this invention the rollers operate inexactly the same manner as they do with the conventional prior-knownhousings having the same adjustable features, so that the curvature ofthe plate can be determined in the same manner as heretofore.

With the above and other objects in View, the invention consists in theconstruction, combination and arrangement of parts as will be describedmore fully hereinafter.

In the drawing:

Fig. 1 is an elevational view of the shell plate roller housing of thisinvention, some parts being shown in section;

Fig. 2 is a section on line 2-2 of Fig.1; and

Fig. 3 is a section on line 3-3 of Fig. 2.

There is shown at I0 and I! the conventional upper and lower rolls of ashell plate rolling device, the upper roller being of larger diameterand spaced above but vertically between the lower rolls II. The lowerrolls H are supported in a conventional manner on bearings l2 and onstandard 13 and are relatively fixed in position; that is, they arenon-adjustable as usual. The roll 10 is intended to be verticallyadjusted above the rolls ll but to maintain its vertical alignmentbetween the spaced rolls I I. The upper roll IE is journaled in thebearing M in a yoke I5, secured by means of bosses l6 extending throughthe housing [1 and locked thereto by keys 18, the bearing l4 beinglocked in the yoke l5 by means of a key l9.

As will be observed, this housing I! is provided with a large aperturehaving a width at least slightly greater than twice the width of theplates 2i which are to be rolled therein so that the plate 2! may beinserted through the aperture 28 in a lengthwise direction on one sideof the assembled rolls and removed therefrom on the other side of therolls after the rolling operation has been completed. To assistinplacing the plate 2| in position, a supporting roller 22 is joined as at23 to the outer side of the housing I! just along the lower edge of theaperture 29. another similar roller may be placed on the opposite' sideof the operating rolls l0 and H.

In operation the plate 21' is inserted over the supporting roller22;.until a part of its surface is ready to pass between the operatingrollers ill and H. After the plate 2| has been rolled to the propercurvature, it is removed, reversed, and reinserted so as to allow theother end" of the plate 2i to be rolled to the same curvature. Ifsimilar housings I! are used at each end of the rollers l8 and l Ltheninstead of removing and reversing the shell plate 2! it may be movedfurther onward with the entrance end of the plate 2i now projectingthrough the aperture to the housing at the other end of the rolls,allowing a further section of the plate 2i to be rolled to theproper'curvature. It will be obvious that when a similar housing islocated at the other end that the plate 2| may be of indefinite length,allowing the plate to be passed through the machine and have sectionsthereof rolled consecutively until the entire plate has been rolled tothe same curvature.

The shell plate 21 is intended to be used in ship construction and assuch will usually need only a slight degree of curvature. As shown onthe drawing, the housing I! may be of substantial width in which case ashell plate of great width may be rolled to any curvature permitted bythe height of the aperture 20. Obviously, the height of the aperture 20will be such as to permit the desired curvatures to be produced in theplate.

Obviously, not all shell plates are necessarily rolled to the samecurvature, and this invention makes provision for adjusting the relativevertical distance between the roll l0 and the fixed rolls ll so as topermit a change in curvature. The housing I! is pmvided with a guidefinger 24 secured thereto which extends between the bearing supports 25on the roller standard l3 so that the sides of the bearing supports 25act as guides for the guide finger 24 and keep the housing l1 and upperroller l0 vertically aligned relative to the fixed rolls II. The housingI! is located on supporting arms 26 which are pinned P NT OFFICE j Ifdesired,

as at 21 to forks 28 integrally formed on the top of screws 29 ofadjusting jacks 30. These adjusting jacks 3|] include a pinion 3|rotatable on the worm screws 29 and operable by driving pinion 32 fromany suitable source, the jacks being included within a holding-downcasing 33 resting on a supporting plate 36. To hold the housingsubstantially upright it is secured by means of a bar 34 having a slipjoint 35 extending therethrough. The slip joint 35 may permit a slightpivotal movement of the housing I! about the pin 21 when it is desiredto adjust one end of the roll H] at a different height from that at theopposite end of the roll, the other end of the bar 34 being obviouslysecured to the housing at the other end of the roll.

The invention herein described may be manufactured and used by or forthe Government of the United States of America for governmentalpurposes, without the payment of any royalties thereon.

I claim:

1. In a machine for rolling shell plates wherein one roller means isadjustable relative to another roller means for predetermining thecurvature in a shell plate; a roller supporting housing in which one ofthe roller means is journaled, said roller supporting housing having anaperture therethrough permitting the insertion between said two rollermeans of a shell plate having a greater width and a. greater length thaneither of said roller means, said aperture providing sufficient space atthe sides of said roller means to permit a substantial portion of theshell plate to be rolled.

2. In a machine for rolling shell plates wherein one roller means isadjustable relative to another roller means for predetermining thecurvature in a shell plate; a roller supporting housing in which one ofthe roller means is journaled, said roller supporting housing having anaperture therethrough of substantial width and extending to oppositesides of said rolling means, said aperture permitting the insertionbetween said two rolling means of a shell plate having a greater Widthand a greater length than either of said roller means, and providingsufficient space at the sides of said roller means to permit asubstantial portion of the plate to be rolled, and means for verticallyadjusting said housing in fixed relative alignment to the other rollermeans.

3. In a machine for rolling shell plates wherein one roller means isadjustable relative to another roller means for predetermining thecurvature in a shell plate; a roller supporting housing in which one ofthe roller means is journaled, said roller supporting housing having anaperture therethrough of substantial width and extending to oppositesides of said rolling means, said aperture permitting the insertionbetween said two rolling means of a shell plate having a greater widthand a greater length than either of said roller means, and providingsufilcient space at the sides of said roller means to permit asubstantial portion of the plate to be rolled, and means for verticallyadjusting said housing in fixed relative alignment to the other rollermeans, said vertical adjustable means including jack means and a guidingmeans on said housing cooperating with a guiding means fixed relative to.the other roller means.

4. In a machine for rolling shell plates wherein one roller means isadjustable relative to another roller means for predetermining thecurvature in a shell plate; a roller supporting housing in which one ofthe roller means is journaled, said roller supporting housing having anaperture therethrough permitting a shell plate of a length greater thanthe length of the rollers to extend therethrough while at least part ofthe shell plate is being rolled, and means for vertically adjusting saidhousing in fixed relative alignment to i the other roller means, saidvertical adjustable means including jack means and a guiding means onsaid housing cooperating with a guiding means fixed relative to theother roller means, pin means securing said housing through said jackmeans and a reinforcing bar having a sliding joint extending throughsaid housing whereby said housing may be adjusted independently of theroller supporting means at the other end of the roller means.

5. A shell plate roller housing in which shell plate roller means arejournaled, the journalling means being located each at the apex of theangles of a triangle, said housing having an aperture intersectingacross the triangle so defined and extending a substantial distancebeyond the intersected sides of the triangle whereby a shell plate maybe inserted through said aperture to have part thereof pass between theroller means from one side thereof to the other side thereof.

JOHAN O. HOLMBERG.

